Osg 402-5000-BN Ball End Mill 0.5in 2 Flute Solid Carbide

Product Description

The OSG 402-5000-BN is a solid carbide ball end mill designed for precise milling operations across a wide range of materials. With a 0.5 inch cutting diameter and a 1 inch length of cut, this single-end tool features a 2-flute, right-hand helical geometry at a 30-degree helix angle. The micrograin carbide construction provides the rigidity and edge retention needed for both roughing and finishing passes. The bright uncoated finish suits applications where coating interaction with the workpiece is a concern. Machinists and tool-and-die professionals rely on this geometry for contoured surface work, 3D profiling, and radius slot milling.

The 402-5000-BN is suited for use in vertical machining centers and CNC milling machines handling a broad range of workpiece materials. Rated secondary workpiece materials include steel, stainless steel, cast iron, non-ferrous metals, superalloys, titanium, and hard materials. The straight-cylindrical shank measures 0.5 inches in diameter and seats directly into standard ER or end mill holders. At 3 inches overall length with a standard length classification, this tool fits typical production setups without requiring extended-reach tooling.

Key Features

• Solid micrograin carbide construction for edge retention in demanding materials
• 2-flute right-hand helical geometry at 30-degree helix angle supports chip evacuation during roughing and finishing
• Ball nose profile with 0.25 inch nose radius enables contoured and 3D surface milling
• Bright uncoated finish for compatibility across a wide material range
• Single-end design with straight-cylindrical shank for standard collet and end mill holder fitment
• No chipbreaker, no variable helix, no coolant-through — optimized for straightforward CNC milling setups

Compatibility

Rated for use on steel (P), stainless steel (M), cast iron (K), non-ferrous metals (N), superalloys and titanium (S), and hard materials (H) per ISO workpiece material classification. Designed as a direct-fit tool in standard 0.5 inch bore end mill holders and ER collet systems used in CNC vertical machining centers.

Installation Notes

Installation and tool changes should be performed by qualified machinists with the spindle fully stopped and the machine in a safe, locked-out state. Seat the straight-cylindrical shank fully into the holder before torquing the retention mechanism per the holder manufacturer's specifications. Verify runout with a dial indicator before initiating a cut. Confirm that programmed feeds, speeds, and depth of cut are appropriate for the workpiece material and machine rigidity before running the first pass.